A Mobile Love Story (Chinese: 爱情占线; pinyin: Ai Qing Zhan Xian) is a twenty-one episode Chinese Romance Idol drama starring Taiwanese heartthrob Wallace Huo and mainland singer-actress Han Xue with Singapore superstars Christopher Lee and Yvonne Lim.
Mu Beibei (Han Xue) is a marketing student who aspires to work for a large marketing agency called Star River; meanwhile, she is supporting her tuition and her mother's medical bills by working part-time as a local small-town tour guide.
During one of her assignments, she meets Lin Lizhong (Christopher Lee), a rich playboy from Singapore, whom she mistakes as a client.
Lu Yunfei (Wallace Huo) is an up-and-coming star in the advertising industry who has just started a marketing firm with a friend and has been nominated for an award for one of his projects.
His long-time girlfriend, Su Fei (Yvonne Lim) has just returned to Shanghai after working abroad for two years as a doctor.
Yunfei tries to find Su Fei over the next several days, but she refuses to respond to his phone calls or SMSes.